Slip-socket



A. M. MONROE.

SLIP SOCKET.

APPLICATION HLED @91.21.1918.

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Patented June 10, 1919.

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ALBERT MERTON MONROE, OF TAIET, CALIFORNIA.

SLIP-SOCKET.

Specification of Letters Patent.

Patented June 10, 1919.

Application filed lOctober 21, 1918. Serial N0. 259,163.

To all-whom t may concern.'

Be it known that I, ALBERT MERToN MoN- RoE, a citizen of the UnitedStates, and a residentof Taft, in the county of Kern and State ofCalifornia, have invented certain new and useful Improvements inSlip-Sockets, of which the following is a specification.

My invention is an improvement in slip sockets, and has for its objectto provide a device of the character specified especially adapted foruse with :shing tools, for in surin/g a rm grip on the tool, and whichis automatically engaged with the tool.

In the drawings:

Figure 1 is alongitudinal section through the improved socket;

Fig. 2 is a section on the line 2 2 of Fig. l, looking in the directionof the ar.- rows adjacent to the line;

Fig. 3 is' a side view of the socket detached.

The present embodiment of the invention is shown descending through awell casing 1 about to engage the tool 2 to be recovered. The improvedfishing tool, of which the slip socket is a part, comprises a sleeve ortubular casing 3, having at its lower end an inwardly extending annularshoulder 4, and the stem bore flares in both directions from theshoulder, a second shoulder 5 being formed at the upper end of theupwardly aring portion, the said shoulder 5 facing downwardly. It willbe noticed that the flared portion above the shoulder 4 is ofconsiderable length. The upper end of the lbore /of the sleeve 3 isinternally threaded and is engaged by a second sleeve G, which has areduced nipple 7 engaging within the threaded portion, and an annularshoulder 8 is formed at the inner end of the nipple, the said shoulderfacing upwardly.

- A connector 9 is threaded into the upper end of the sleeve 6 and thisconnector has at its upper end a threaded stem 10 which may be engagedwith a socket in a' suitable handling means, indicated at l1, for thetool. This connector 9 has openings 12A for the passage of water fromabove the tool downwardly through the bore of the tool.

The slip socket proper is a sleeve annularly enlargedv at one end. asindicated at 13, and having a tapering head 11 atthe other which isshaped to fit loosely within that portion of the bore of the sleeve 3between the shoulders 4 and 5, the said head having a shoulder 15 at itstop, adapted to abut the shoulder 5 under circumstances to be presentlyset forth. This sleeve is split longitudinally from the collar 13 asshown, to form resilient lingers 16 connecting the sections of the headtothe collar, and the splits at the head are of greatest width at theend of the head remote from the collar. Thus the sections of the headmay be moved toward each other, that is, the head may be compressed. Theinner surfaces of the head sections are toothed or corrugated as shownin Fig. A1, the teeth or corrugations facing upward.

A tubular casing 17 is mounted to slide in the nipple 7, the said casinghaving an annular shoulder 18 at its upper end for engaging the shoulder8 to limit the downward movement of the casing, and a coil spring 19 isarranged between the casing and the connector- 9, the spring actingnormally to force the casing downwardly and to force the socket 13-14-16downward.

In use, the device is lowered into the well casing as shown in Fig. 1.The upper broken end of the sucker rod will be guided into the bore ofthe head 14, by the flaring surfaces, it being seen that the lower endof the head is also tapering or flaring to cor- 'respond with the flareof the sleeve. The tool Awill .pass upwardly through the head, the headand socket moving upwardly to permit this movement. When the iishingtool is now draw upward the tool 2 will be held, since the head 14 willbe moved down- `ward in the sleeve 3, and the sections of the head willlbe tightly compressed upon the tool. The greater the, pull the moretightly will the head sections be I claim: y A device of the characterspecied comprising a tubular Icasing or socket, a sleeve mounted to movein the socket, said sleeve being split longitudinally from near itsinner end to the outer end to form a. series of Compressed.

tongues, ends, the casing or socket am ing at the end remote 5 to Jforcethe gripping jaws sleeve is moved downward, the first named sleeve andhaving gripping jaws at their free l the sleeve havrorn the connectionof the tongues Cooperating inclined surfaces inward when the a sleeveabove a spring above the last named sleeve and norniall \v pressing saidsleeve downwardly, the said sleeve having means for limiting itsdownward 10 movement to a point where the first named sleeve is innormal position.

ALBERT MERTON MONROE.

